Daikin Emura RXJ20A5V1B Service Manual page 120

4 | Components
To check the fuse of the main PCB
To check the rectifier voltage of the main PCB
Service manual
120
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 117].
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
b
a Fuse F1U
b Fuse F2U
Blown fuse on the main PCB?
Yes
No
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 117].
1 Turn ON the power of the unit.
2 Measure the voltage on the rectifier voltage check terminals (+ and –) on the
main PCB.
Result: The measured voltage MUST be approximately 324 V DC.
a
b
a + terminal
b – terminal
a
Action
Replace the main PCB, see
4
procedures" [ 124].
Return to "Checking
4
procedures" [ 117] of the main PCB
and continue with the next procedure.
"Checking
"Repair
"Checking
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08